WO2017022323A1 - Procédé de traitement de signal d'image, dispositif de traitement de signal d'image et programme de traitement de signal d'image - Google Patents

Procédé de traitement de signal d'image, dispositif de traitement de signal d'image et programme de traitement de signal d'image Download PDF

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Publication number
WO2017022323A1
WO2017022323A1 PCT/JP2016/066799 JP2016066799W WO2017022323A1 WO 2017022323 A1 WO2017022323 A1 WO 2017022323A1 JP 2016066799 W JP2016066799 W JP 2016066799W WO 2017022323 A1 WO2017022323 A1 WO 2017022323A1
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Prior art keywords
signal processing
unit
component
image signal
signal
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PCT/JP2016/066799
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English (en)
Japanese (ja)
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朋也 佐藤
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オリンパス株式会社
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/04—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor combined with photographic or television appliances
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T1/00—General purpose image data processing

Definitions

  • the present invention relates to an image signal processing method, an image signal processing apparatus, and an image signal processing program for performing signal processing such as brightness adjustment processing on an input image.
  • Patent Document 1 image signals of red (R), green (G), and blue (B) color components constituting an input image are input, and after performing contour enhancement processing for each color component, this contour enhancement processing is performed. The color display is performed based on the image signal of each color component subjected to.
  • the present invention has been made in view of the above, and an image signal processing method, an image signal processing apparatus, and an image signal processing program capable of reducing the amount of calculation required for signal processing of an image signal including a plurality of color components
  • the purpose is to provide.
  • an image signal processing method extracts a component having predetermined color information from an image signal including a plurality of components having different color information.
  • a second signal processing step for performing signal processing on the component having the color information.
  • the image signal is a signal generated by photoelectric conversion processing of a plurality of pixels, and the luminance values of red, green, and blue components are the colors.
  • the information is a signal given to each pixel position, and the extracting step extracts a luminance value of any one of red, green, and blue colors for each pixel position.
  • the extracting step extracts the color component having the largest luminance value among the luminance values of red, green and blue for each pixel position.
  • the image signal processing method according to the present invention is the image signal processing method according to the above invention, wherein the image signal is a signal generated by photoelectric conversion processing of a plurality of pixels, and the plurality of color information is given according to each pixel position.
  • the calculating step calculates the change amount for each pixel position.
  • An image signal processing apparatus includes an image signal acquisition unit that acquires an image signal including a plurality of components having different color information, and a predetermined color from the image signal acquired by the image signal acquisition unit.
  • An extraction unit that extracts a component having information; a first signal processing unit that performs signal processing including brightness adjustment processing on the component extracted by the extraction unit; the component extracted by the extraction unit; Based on the component subjected to signal processing by one signal processing unit, a calculation unit that calculates a change amount before and after processing by the first signal processing unit, and the extraction based on the change amount calculated by the calculation unit And a second signal processing unit that performs signal processing on components having color information that is not to be extracted.
  • An image signal processing program includes an extraction procedure for extracting a component having predetermined color information from an image signal including a plurality of components having different color information, and a component extracted by the extraction procedure.
  • the first signal processing procedure for performing signal processing including brightness adjustment processing the component extracted in the extraction procedure, and the component subjected to signal processing in the first signal processing procedure.
  • signal processing is performed on the component having color information that is not to be extracted in the extraction procedure. And a second signal processing procedure to be performed.
  • FIG. 1 is a diagram showing a schematic configuration of an endoscope system according to an embodiment of the present invention.
  • FIG. 2 is a block diagram showing a schematic configuration of the endoscope system according to the embodiment of the present invention.
  • FIG. 3 is a flowchart showing an image signal processing method performed by the processing apparatus according to the embodiment of the present invention.
  • FIG. 1 is a diagram showing a schematic configuration of an endoscope system according to an embodiment of the present invention.
  • FIG. 2 is a block diagram showing a schematic configuration of the endoscope system according to the present embodiment.
  • a solid arrow indicates transmission of an electric signal related to an image
  • a broken arrow indicates transmission of an electric signal related to control.
  • An endoscope system 1 shown in FIGS. 1 and 2 includes an endoscope 2 that captures an in-vivo image of a subject by inserting a tip portion into the subject, and illumination light emitted from the tip of the endoscope 2. And a processing device 3 that performs predetermined signal processing on the image signal captured by the endoscope 2 and controls the overall operation of the endoscope system 1. And a display device 4 for displaying the in-vivo image generated by the signal processing.
  • the endoscope 2 includes an insertion portion 21 having an elongated shape having flexibility, an operation portion 22 that is connected to a proximal end side of the insertion portion 21 and receives input of various operation signals, and an insertion portion from the operation portion 22. And a universal cord 23 that includes various cables that extend in a direction different from the direction in which 21 extends and are connected to the processing device 3 (including the light source unit 3a).
  • the insertion unit 21 receives a light and performs photoelectric conversion to generate a signal to generate a signal.
  • the insertion unit 21 includes an image pickup element 244 in which pixels are arranged in a two-dimensional shape, and a bendable portion formed by a plurality of bending pieces. And a long flexible tube portion 26 connected to the proximal end side of the bending portion 25 and having flexibility.
  • the insertion unit 21 uses the image sensor 244 to image a subject such as a living tissue that is inserted into the body cavity of the subject and is not reachable by external light.
  • the tip portion 24 is configured by using a glass fiber or the like, and forms a light guide path for light emitted from the light source portion 3a, an illumination lens 242 provided at the tip of the light guide 241, and condensing optics. And an image sensor 244 that is provided at an image forming position of the optical system 243, receives light collected by the optical system 243, photoelectrically converts the light into an electrical signal, and performs predetermined signal processing.
  • the optical system 243 is configured by using one or a plurality of lenses, and has an optical zoom function for changing the angle of view and a focus function for changing the focus.
  • the image sensor 244 photoelectrically converts light from the optical system 243 to generate an electrical signal (imaging signal).
  • imaging element 244 a plurality of pixels each having a photodiode that accumulates electric charge according to the amount of light, a capacitor that converts electric charge transferred from the photodiode into a voltage level, and the like are arranged in a matrix, A light receiving unit 244a in which each pixel photoelectrically converts light from the optical system 243 to generate an electric signal, and an electric signal generated by a pixel arbitrarily set as a reading target among a plurality of pixels of the light receiving unit 244a is sequentially read out And a reading unit 244b for outputting as an imaging signal.
  • the light receiving unit 244a is provided with a color filter, and each pixel receives light in one of the wavelength bands of the color components of red (R), green (G), and blue (B).
  • the image sensor 244 controls various operations of the distal end portion 24 in accordance with the drive signal received from the processing device 3.
  • the image sensor 244 is realized using, for example, a CCD (Charge Coupled Device) image sensor or a CMOS (Complementary Metal Oxide Semiconductor) image sensor.
  • the operation section 22 includes a bending knob 221 that bends the bending section 25 in the vertical direction and the left-right direction, a treatment instrument insertion section 222 that inserts a treatment instrument such as a biological forceps, an electric knife, and a test probe into the body cavity of the subject.
  • a treatment instrument such as a biological forceps, an electric knife, and a test probe into the body cavity of the subject.
  • it has a plurality of switches 223 that are operation input units for inputting operation instruction signals of peripheral devices such as air supply means, water supply means, and screen display control.
  • the treatment tool inserted from the treatment tool insertion portion 222 is exposed from the opening (not shown) via the treatment tool channel (not shown) of the distal end portion 24.
  • the universal cord 23 includes at least a light guide 241 and a collective cable 245 in which one or a plurality of signal lines are collected.
  • the collective cable 245 is a signal line for transmitting an image signal, a signal line for transmitting a drive signal for driving the image sensor 244, information including unique information regarding the endoscope 2 (image sensor 244), and the like.
  • the processing device 3 includes an imaging signal acquisition unit 31, an extraction unit 32, a first signal processing unit 33, a calculation unit 34, a gain map generation unit 35, a second signal processing unit 36, and a display image generation unit 37.
  • the image signal processing apparatus according to the present invention is configured using at least the extraction unit 32, the first signal processing unit 33, the calculation unit 34, the gain map generation unit 35, and the second signal processing unit 36.
  • the imaging signal acquisition unit 31 receives the imaging signal output from the imaging element 244 from the endoscope 2.
  • the imaging signal acquisition unit 31 performs signals such as noise removal, A / D conversion, and synchronization processing (for example, performed when an imaging signal for each color is obtained using a color filter or the like) on the acquired imaging signal. Apply processing.
  • Imaging signal acquisition unit 31 the respective color components of RGB by the above-described signal processing (hereinafter also referred to as RGB components) to produce an input image signal S C granted.
  • the input image signal S C has RGB luminance values for each pixel position.
  • the luminance value of each color corresponds to color information.
  • the imaging signal acquisition unit 31 inputs the generated input image signal S C to the extraction unit 32.
  • Extraction unit 32 acquires an input image signal S C from the imaging signal acquisition unit 31, at each pixel location, to extract each component having the largest luminance value among RGB components.
  • the extraction unit 32 extracts a component including the largest luminance value between the RGB components at each pixel position, and the first signal processing unit 33 and the calculation unit 34 extract the component S E including the extracted maximum luminance value at each pixel position.
  • the component S E ′ not to be extracted is input to the second signal processing unit 36.
  • the component S E includes one color component having the maximum luminance value among the RGB components at each pixel position.
  • the component S E ′ includes all color components except the color extracted by the extraction unit 32 at each pixel position.
  • the first signal processing unit 33 performs brightness adjustment processing and enhancement processing on the component S E extracted by the extraction unit 32. Specifically, the first signal processing unit 33 performs ⁇ correction processing and edge enhancement processing on the component S E extracted by the extraction unit 32.
  • the first signal processing unit 33 inputs the first processed signal S T1 after the signal processing to the calculation unit 34 and the display image generation unit 37.
  • the first signal processing unit 33 may be any process as long as it can process the luminance value of the extracted component S E.
  • the calculation unit 34 calculates the difference between the component S E before the signal processing by the first signal processing unit 33 input by the extraction unit 32 and the first processing signal S T1 after the signal processing by the first signal processing unit 33. Calculate as Specifically, the calculation unit 34 calculates the ratio (gain ratio) of the luminance value after signal processing to the luminance value before signal processing by the first signal processing unit 33 for each pixel position. The calculation unit 34 inputs the change amount signal S v including the ratio of each pixel position to the gain map generation unit 35.
  • the gain map generation unit 35 generates a gain map based on the ratio (change amount signal S v ) between the pixel positions calculated by the calculation unit 34 and the pixel position of the ratio. Thereby, a gain map having a gain ratio to which position information corresponding to each pixel position is given is generated.
  • the gain map generator 35 inputs the gain map signal S G including the generated gain map to the second signal processor 36.
  • the second signal processing unit 36 refers to the gain map generated by the gain map generation unit 35 and performs gain adjustment processing on the luminance value of the component S E 'that is not extracted and input by the extraction unit 32. Specifically, the second signal processing unit 36 performs gain adjustment processing by multiplying the component S E ′ not to be extracted by the gain ratio corresponding to the position information, and generates the second processing signal ST2 . The second signal processing unit 36 inputs the second processed signal S T2 after the gain adjustment processing to the display image generation unit 37.
  • the display image generation unit 37 combines the first processed signal ST1 after the signal processing by the first signal processing unit 33 and the second processed signal ST2 after the gain adjustment processing by the second signal processing unit 36, performs signal processing such that the signal viewable manner on the display device 4, to generate a color image signal S T for display.
  • the display image generation unit 37 outputs the generated color image signal ST to the display device 4.
  • the input unit 38 is realized by using a keyboard, a mouse, a switch, and a touch panel, and receives input of various signals such as an operation instruction signal for instructing an operation of the endoscope system 1.
  • the input unit 38 may include a switch 223 provided in the operation unit 22 and a portable terminal such as an external tablet computer.
  • the storage unit 39 stores various programs for operating the endoscope system 1 and data including various parameters necessary for the operation of the endoscope system 1. Further, the storage unit 39 stores identification information of the processing device 3.
  • the identification information includes unique information (ID) of the processing device 3, model year, specification information, and the like.
  • the storage unit 39 stores various programs including an image signal processing program for executing the image signal processing method of the processing device 3.
  • Various programs can be recorded on a computer-readable recording medium such as a hard disk, a flash memory, a CD-ROM, a DVD-ROM, or a flexible disk and widely distributed.
  • the various programs described above can also be obtained by downloading via a communication network.
  • the communication network here is realized by, for example, an existing public line network, LAN (Local Area Network), WAN (Wide Area Network), etc., and may be wired or wireless.
  • the storage unit 39 having the above configuration is realized by using a ROM (Read Only Memory) in which various programs are installed in advance, a RAM (Random Access Memory) storing a calculation parameter and data of each process, a hard disk, and the like. Is done.
  • ROM Read Only Memory
  • RAM Random Access Memory
  • the control unit 40 is configured using a CPU (Central Processing Unit) or the like, and performs drive control of each component including the image sensor 244 and the light source unit 3a, input / output control of information to each component, and the like.
  • the control unit 40 refers to control information for imaging control (for example, readout timing) stored in the storage unit 39, and sets a drive signal for driving the imaging device 244 according to the control information to the collective cable 245. Is transmitted to the image sensor 244 via a predetermined signal line included in the image signal.
  • control unit 40 detects the brightness based on the image (for example, a color image) based on the acquired imaging signal, sets the exposure amount, and the light emission amount (intensity and time) according to the set exposure amount. Or a dimming signal indicating the shutter opening time.
  • the light source unit 3 a includes an illumination unit 301 and an illumination control unit 302. Under the control of the illumination control unit 302, the illumination unit 301 sequentially switches and emits illumination light with different exposure amounts to the subject (subject).
  • the illumination unit 301 includes a light source 301a and a light source driver 301b.
  • the light source 301a is configured using an LED light source that emits white light, one or a plurality of lenses, and the like, and emits light (illumination light) by driving the LED light source. Illumination light generated by the light source 301 a is emitted from the tip of the tip 24 toward the subject via the light guide 241.
  • the light source 301a may be configured by using a red LED light source, a green LED light source, and a blue LED light source to emit illumination light.
  • the light source 301a may be a laser light source or a lamp such as a xenon lamp or a halogen lamp.
  • the light source driver 301b causes the light source 301a to emit illumination light by supplying a current to the light source 301a under the control of the illumination control unit 302.
  • the illumination control unit 302 controls the amount of power supplied to the light source 301a and the drive timing of the light source 301a based on a control signal (dimming signal) from the control unit 40.
  • the display device 4 displays the display image corresponding to the color image signal S T of the processing unit 3 via the video cable (display image generation unit 37) is generated.
  • the display device 4 is configured using a monitor such as liquid crystal or organic EL (Electro Luminescence).
  • the extraction unit 32 performs, for each pixel position, a plurality of color components (RGB components) included in the imaging signal.
  • the color component S E having the maximum luminance value is extracted.
  • the first signal processing unit 33 performs brightness adjustment processing and enhancement processing on the extracted component S E
  • the gain map generation unit 35 calculates the gain map based on the gain ratio calculated by the calculation unit 34.
  • the second signal processing unit 36 performs gain adjustment processing based on the gain map for each component S E ′ that is not to be extracted
  • the display image generation unit 37 performs RGB processing after the signal processing.
  • image signal based on the (first processed signal S T1 and the second processing signal S T2) to generate a color image signal S T which has been subjected to signal processing for display
  • the display device 4 based on the color image signal S T Display the display image.
  • FIG. 3 is a flowchart showing an image signal processing method performed by the processing apparatus according to the embodiment of the present invention.
  • each unit operates under the control of the control unit 40.
  • the imaging signal acquisition unit 31 acquires an imaging signal from the endoscope 2 (step S101: Yes), an input to which red (R), green (G), and blue (B) color components are added by signal processing.
  • An image signal S C is generated and input to the extraction unit 32.
  • the imaging signal acquisition unit 31 repeats the input confirmation of the imaging signal.
  • the extraction unit 32 acquires the input image signal S C from the imaging signal acquisition unit 31, and extracts the luminance value of the color having the maximum luminance value for each pixel position from the input image signal S C to which the RGB component is added. (Step S102: Extraction step).
  • the extraction unit 32 inputs a component S E composed of a plurality of maximum luminance values extracted by the extraction process described above to the first signal processing unit 33 and the calculation unit 34.
  • the first signal processing unit 33 performs brightness adjustment processing and enhancement processing on the input component S E (step S103: first signal processing step). Specifically, the first signal processing unit 33 performs ⁇ correction processing and edge enhancement processing on the component S E to generate the first processing signal S T1 . The first signal processing unit 33 inputs the first processed signal S T1 after the signal processing to the calculation unit 34 and the display image generation unit 37.
  • the calculation unit 34 uses the ratio (gain ratio) of the luminance value of the component (first processed signal S T1 ) after the signal processing to the luminance value of the component S E before the signal processing by the first signal processing unit 33 as the amount of change. Calculation is performed for each position (step S104: calculation step).
  • the calculation unit 34 inputs the change amount signal S v including the gain ratio at each pixel position to the gain map generation unit 35.
  • the gain map generation unit 35 generates a gain map based on the gain ratio of each pixel position based on the variation signal Sv and the position information given to the gain ratio (step S105). Thereby, a gain map having a gain ratio to which position information corresponding to each pixel position is given is generated.
  • the gain map generator 35 inputs the gain map signal S G including the generated gain map to the second signal processor 36.
  • the second signal processing unit 36 refers to the gain map generated by the gain map generation unit 35 with respect to the luminance value of the component S E ′ input by the extraction unit 32, and multiplies the gain ratio for each pixel position to adjust the gain.
  • a second processing signal ST2 is generated (step S106: second signal processing step).
  • the second signal processing unit 36 inputs the second processed signal S T2 after the gain adjustment processing to the display image generation unit 37.
  • the display image generation unit 37 combines the first processed signal ST1 after the signal processing by the first signal processing unit 33 and the second processed signal ST2 after the gain adjustment processing by the second signal processing unit 36, performs signal processing such that the signal viewable manner on the display device 4, to generate a color image signal S T for display (step S107).
  • the display image generation unit 37 outputs the generated color image signal ST to the display device 4.
  • Display device 4 displays an image corresponding to the input color image signal S T.
  • the extraction unit 32 includes the component S E composed of the maximum luminance value for each pixel position among the luminance values of a plurality of colors included in the input image signal S C inputted.
  • the first signal processing unit 33 performs brightness adjustment processing and enhancement processing on the extracted component S E , and the gain map generation unit 35 calculates the gain based on the gain ratio calculated by the calculation unit 34.
  • the map is generated, and the second signal processing unit 36 uses the luminance value included in the component S E ′ (the color component excluding the color extracted by the extraction unit 32 among the RGB components at each pixel position).
  • each based on the gain map by a gain adjustment process if the input image signal S C contains a plurality of color components, a gain ratio based on one of the color components extracted for each pixel position For other color components. And to perform gain adjustment by the gain ratio. Accordingly, even when the input image signal S C contains a plurality of color components, it is possible to reduce the calculation amount required for the signal processing of the input image signal S C. Moreover, by reducing the calculation amount required for the signal processing of the input image signal S C, it is possible to reduce the circuit scale according to the signal processing of the input image signal S C.
  • the relative intensity ratio between each color component can be held before and after the signal processing, Even if the amount of calculation is reduced, the color of the generated color image does not change.
  • the extraction unit 32 extracts the color component having the largest luminance value at each pixel position. Therefore, the luminance value after gain adjustment has an upper limit value at all pixel positions. Clips caused by exceeding can be suppressed.
  • the extraction target by the extraction unit 32 has been described as extracting the color component having the highest luminance value at each pixel position.
  • the present invention is not limited to this.
  • a luminance value of a set color among luminance values of each color may be extracted as an extraction target.
  • the color to be extracted by the extraction unit 32 may be any color of RGB.
  • the color to be extracted be G or B.
  • the imaging signal acquisition unit 31 has been described as generating the input image signal S C to which RGB color components are added as color information.
  • the RGB color space is converted into the XYZ space.
  • the XYZ component may be used as color information, and a signal including the XYZ component may be generated.
  • the color information according to the present invention includes an YCbCr color space that includes a luminance component and a color difference component, and an HSV color space that includes three components of hue, saturation, and value lightness brightness.
  • the luminance in the L * a * b * color space using a three-dimensional space is not included.
  • the gain map generation unit 35 has been described as generating a gain map by assigning a change amount (gain ratio) for each pixel position.
  • a change amount gain ratio
  • a plurality of pixels such as 2 ⁇ 2 A gain ratio may be assigned for each.
  • the gain map generation unit 35 may not be provided, and the calculation unit 34 may input the change amount to which the pixel position information is added to the second signal processing unit 36.
  • the gain map generation unit 35 may store the generated gain map in the storage unit 39.
  • the control unit 40 may generate the gain map generation process described above for each frame or may be generated for every several frames.
  • the latest gain map stored in the storage unit 39 is used for signal processing of frames for which no gain map is generated.
  • white light is emitted from the light source unit 3a, and the light receiving unit 244a is described as a simultaneous illumination / imaging method in which light of RGB components is received.
  • a surface sequential illumination / imaging method in which light in the RGB component wavelength band is individually emitted sequentially and the light receiving unit 244a receives light of each color component may be employed.
  • the light source unit 3a has been described as being configured separately from the endoscope 2.
  • a light source device such as a semiconductor light source is provided at the distal end of the endoscope 2.
  • the structure provided in the endoscope 2 may be sufficient.
  • the function of the processing device 3 may be given to the endoscope 2.
  • the light source part 3a was demonstrated as what was integrated with the processing apparatus 3 in embodiment mentioned above, the light source part 3a and the processing apparatus 3 are separate bodies, for example, an illumination part is provided in the exterior of the processing apparatus 3. 301 and the illumination control unit 302 may be provided.
  • the image signal processing apparatus includes the extraction unit 32 of the endoscope system 1 using the flexible endoscope 2 whose observation target is a biological tissue or the like in the subject.
  • a rigid endoscope or an industrial endoscope for observing material characteristics can also be applied to an endoscope system using a camera head connected to an eyepiece of an optical endoscope such as a mirror, a capsule endoscope, a fiberscope, or an optical endoscope.
  • the image signal processing apparatus according to the present invention can be applied to both inside and outside the body, and performs extraction processing and gain adjustment processing on a video signal including an imaging signal and an image signal generated outside.
  • the endoscope system has been described as an example.
  • the present invention can also be applied to, for example, outputting an image to an EVF (Electronic View Finder) provided in a digital still camera or the like.
  • EVF Electronic View Finder
  • the image signal processing method, the image signal processing apparatus, and the image signal processing program according to the present invention are useful for reducing the amount of calculation required for signal processing of an image signal including a plurality of color components.

Abstract

L'invention concerne un procédé de traitement d'image qui comprend : une étape d'extraction pour extraire, à partir d'un signal d'image qui contient plusieurs composantes ayant des informations de couleur différentes entre elles, une composante qui a des informations de couleur prescrites ; une première étape de traitement de signal pour soumettre la composante extraite dans l'étape d'extraction à un traitement de signal comprenant un traitement de réglage de luminosité ; une étape de calcul pour calculer la quantité de changement avant et après le traitement dans la première étape de traitement de signal sur la base de la composante extraite dans l'étape d'extraction et de la composante soumise à un traitement de signal dans la première étape de traitement de signal ; et une seconde étape de traitement de signal qui, sur la base de la quantité de changement calculée dans l'étape de calcul, effectue un traitement de signal sur les composantes ayant des informations de couleur autres que celles qui ont été extraites dans l'étape d'extraction.
PCT/JP2016/066799 2015-08-03 2016-06-06 Procédé de traitement de signal d'image, dispositif de traitement de signal d'image et programme de traitement de signal d'image WO2017022323A1 (fr)

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JP2015153490A JP2018151679A (ja) 2015-08-03 2015-08-03 画像信号処理方法、画像信号処理装置および画像信号処理プログラム
JP2015-153490 2015-08-03

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006137361A1 (fr) * 2005-06-20 2006-12-28 Nikon Corporation Dispositif et procédé de traitement d’image, produit pour programme de traitement d’image, et dispositif d’imagerie
JP2012054985A (ja) * 2004-07-07 2012-03-15 Nikon Corp 画像処理装置

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012054985A (ja) * 2004-07-07 2012-03-15 Nikon Corp 画像処理装置
WO2006137361A1 (fr) * 2005-06-20 2006-12-28 Nikon Corporation Dispositif et procédé de traitement d’image, produit pour programme de traitement d’image, et dispositif d’imagerie

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